Question

Which processes contribute to the formation of chemical sedimentary rocks?

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Organisms decay in a solution.

Minerals dissolve and crystalize.

Rock fragments squeeze together.

The remains of plants and animals.

Answer 1

Minerals dissolve and crystallize.

The remains of plants and animals.

Step-by-step explanation:

The chemical sedimentary rocks form when the parent material weathers into sediment. The sediment includes chemical inorganic minerals and partially or completely degraded organic matter that comes from the remains of plants and animals. The layers of sediments get compacted with overlying heat and pressure which leads to the formation of chemical sedimentary rocks.

Answer 2

Option B, Minerals dissolve and crystalize.

Step-by-step explanation:

Minerals in the ground seeps down the ground through the precipitating water.

Addition of water causes their crystallization. The precipitated minerals reaches the pore spaces beneath the ground and form mineral crust on the sedimentary grains.

This causes cementation of the sediments due to the temperature and pressure beneath the ground. After the cementation, a sedimentary rock is formed.